Brush or cleaner for bottle-washing machines



(No Model.)

J. M. HOYT. BRUSH 0E CLEANER FOR BOTTLE WASHING MACHINES. No. 450,824.Patented Apr. 21, 1891.`

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UNITED STATES PATENT OFFICE.

JOSEPH M. llOYT, OF SALEM, ASSIGNOR TO HOYT BROTHERS & CO., OF LYNN,MASSACHUSETTS.

BRUSH OR CLEANER FOR BOTTLE-WASHING MACHINES.

SPECIFICATION forming part of Letters Patent No. 450,824, dated April2l, 1891.

Application filed January 3, 1888. Serial No. 259,667. `(No model.)

T0 all whom t may concern.-

Be it known that l, JOSEPH M. Horr, of Salem, county of Essex, State ofMassachusetts, have invented an Improvement in Brush or Cleaner forBottle -Vashing Machines, of which the following description, inconnection with the accompanying drawings, is a specification, likeletters on the drawings representing like parts.

My invention relates to a brush or cleaner to be used in bottle-Washingmachines of the kind in which said brush is attached to the end of arotating shaft and is guided through the neck into the interior of thebottle, in which the brush expands, so as to rub over the sides of thebottle as the brush rotates with its shaft.

One kind of brush commonlyused in bottle-washing machines of this kindconsists of a soft-rubber cylinder` connected to a chuck or metal holderat the end of the brush-shaft and having its projecting end separated bylongitudinal divisions into four parts, more or less, which separatefrom one another by centrifugal force when the brush is rotated at highspeed. Brushes of this kind have usually been tubular, and both thechuck and portion of the brush fastened therein have had a longitudinalpassage, through which water passes from the hollow brush-shaft into thebottle. The soft or rubber portion of the brush as heretofore made hasbeen inserted in a socket in the chuck, by which it is connected withthei'shaft, and secured in said socket by rivets or other permanentfastening, so that the use of special tools was required for connectingthe brush with the chuck or metallic shank-piece, and usually when abrush beca-me Worn the entire brush and chuck were discarded and a newbrush and chuck substituted, the connected brushes and chucks beingfurnished by the manufacturer.

The object of the present invention is to provide a brush that can bereadily connected with and disconnected from the chuck or metallic shankportion, so that when a brush is worn out the metallic shank need not bediscarded, but a new brush may be connected therewith, the said brushesbeing furnished bythe manufacturer and properly constructed to beconnected with the metallic shank-piece or chuck without tools. In orderto effect this result, the brush, composed of a long prism or cylinderof soft rubber, is molded and vulcanized with a screw-threaded shankportion, which can be turned directly into the metallic chuck or socket;and inordcr to municating with radial outlet passages below the shank ofthe brush proper, by which water may be delivered into the bottle whilethe shaft is rotating therein, as is usual in bottle-washing machines ofthe kind referred to. Having thus stated generally the object andprinciple of my invention, Iwill proceed now to describe the same indetail, and finally point out and distinctly claim the part orimprovement which l claim as my invention.

Figure l is a side elevation of a brush or cleaner for bottle-Washingmachines embodying this invention connected With a metallic chuck orsocket-piece, ready to be attached to the shaft of the machine; Fig. 2,a side elevation of the brush proper detached; Fig. 3, a longitudinalsection of the brush proper detached; Fig. 4L, a longitudinal section ofthe chuck or metallic holder; and Figs. 5 and 6, transverse sections ofthe brush proper on lines n: and y, Fig. 2.

The brush proper o is composed of soft rubber, molded to proper shapeand vulcanized, the Working portion of said brush being preferablyprismatic or polygonal in crosssection, as best shown in Fig. 5, so asto present rubbing-edges to the interior of the bottle. This portion isseparated by one or more longitudinal divisions a', extending nearly theentire length of the working portion into a number of separate fingers,which, owing to the flexible nature of the material, will spread apartor separate under the action of centrifugal force when the brush israpidly rotated, as shown in dotted lines, Fig. 1. The said brush properis molded with an integral shank portion d3, provided with an externalIOO screw-thread, as clearly shown in Fig; 2, by means of which it 'maybe securely attached to a metal socket-piece I), provided with auinternal thread b of proper size to receive the threaded portion a3 ofthe brush proper.

When brushes of the kind shown in Fig. 2 are used, the threaded socketmight be made in the end of the shaft of the machine; but it ispreferable to make the socket-piece b separate from said shaft, and toprovide the said socket-piece with means for attaching it to the saidshaft or disconnecting it therefromsuch, for example, as the threadedportion b2- as this construction enables brushes of different kinds tobe used with one machine and quickly exchanged one for another, as themetallic screw'b2 can be more readily screwed into `and out from acorresponding socket in the end of the shaft than can the threaded shank0.3 of the brush be screwed into and out from its socket.

In order to provide for the introduction of wat-er to the bottle whilethe brush is operating, the socket b2A is provided with a longitudinalpassage b3, communicating with a lateral passage b4, (see Figs. l and4,) by which water is introduced from the hollow shaft into the bottle;

The threaded shank portion a3 of the brush may be made rmer, sol as toresist the torsional action in turning it into and out from its socket,by a rigid core c, which may consist of a piece of metal wire vulcanizedinto the rubber.

Rubber brushes having a screw-threaded et-piece by riveting, thedifficulty of removing an old brush and connecting a new one was sogreat that it Was usually not worth while` to do it, and consequentlywhen a brush became worn the entire brush and socket-piece werediscarded and a new one substituted.

I claim A brush or cleaner for bottle-Washing machines consisting of apiece of vulcanized rubber, one end of which is divided longitudinallyand the other end of which, constituting the shank, is solid and moldedwith an external screW-thread,combinedwith a metallic socketpiece havinga corresponding internal screwthread, and an axial bore constructed Withlateral outlets for introducing a cleansingiuid, substantially asdescribed.

In testimony whereof I have signed my name in the presence of twosubscribing witnesses.

JOSEPH M. HOYT.

YVitnesses:

Jos. P. LIVERMORE, M. E. HILL.

